Web roll controlling mechanism



July 21, 1931. H. v. BALL ET AL WEB ROLL CONTROLLING MECHANISM FiledSept. 29, 1927 2 Sheets-Sheet l A-rfvs July 21, 1931. H. v. BALL ET ALWEB ROLL GON'ILROLLING MECHANISM 2 Sheets-Sheet 2 Filed Sept. 29. 192'?INYENTORS Patented July 21 1931 i d I UNITED. STATES PATENT OFFICE HARRYv. ALL, or conceal), massacnusnrrs, Am) ALBERT J. non'ron, or wrnrnrtanvs, NEW YORK, nssreuons To B. HOE & co, me, or NEW 2031;, N. 2., Acoaronerronor NEW YORK WEB ROLL CONTROLLING mncnmsm Application filed.September 29, 1927. Serial No. 222,725.

This inventionrelates to certainlimprove ments in web roll changingmechanism for use 'withmulti-coupl'e rinting machines.

In certain modern igh "speed printing press constructions, the pressesembody-a plurality of printing units each of which prints on a Web rollof paper, the webs being-delivered or associated in various ways to,produce the products required. In the operam tion of these. machines, alargenumber of copies are run oflt' and, the webs have t'o-be renewedfrom time -to time during each'runof the press: In operating thesemachines, it is, of course, of-great importance to .get out the desirednumber of products in the shortest time, and it is desirable, therefore,

that the operation of the presses shall be interfered with tothe leastpossible degree,

particularly during the renewing of the webs.

m The web, rolls used in these machines are supplied by the papermanufacturers in substantially the' sa'mesizes, so that when a press issupplied at the start of a run wlth aplurality of these rolls they willbecome depleted 1 5 at or substantially about the, sametime, so thatfrequently in a large press several of these rolls have. to be renewedat about the same period in the press run.

It is the especial object of the present in-.

3% vention to provide a construction in a multiroll machine, that is, amachine using at the same time a plurality of web rolls, by which 1 anydesired plurality ofthese rolls-'mayhave $5 the expiring webs runningtherefrom united operation being conducted an entirely automatic manner,that is, new web rolls are joined or spliced to the old webs, the lattersevered, and the new rolls placed in running position withoutnecessitating any manual operation. y o

It is a further object of the invention to provide such a constructionin' which automatic changing of the rolls is effected or controlled bythe decrease in the size of any running roll to a predetermineddiameter.

A further object of theinvention is to provide such a construction inwhich, in addition to the automatic changing'of therolls, means isprovided for manuallyefiecting 9.

simultaneously with the new" web rolls, this manipulation of the rollchanging mechanism in either direction in the case of an emergency orfor convenience in loading, or

for any other desired reason.

With these and other objects not specifically referred to in view, theinvention consists in certain-novel parts, arrangements and combinationswhich will be described in connection with the accompanying drawings andthe novel features pointed claims hereunto annexed.

In these drawings, Figure 1 is an end'elevation showing more or lessdiagrammatically a plurality of roll changers and the circuits by whichthese out in the changers may be operated simultaneously in.

an automatic manner to paste a plurality of expiring webs and new rolls,and

Figure 2 is a similar view showing a modified form of roll supports for.the changers which maybe used instead of that illustrated inFi urel. I a

Re erring now to these drawings, the roll supports and the mechanism'foroperating 4 the supports are indicated merely diagrammatically, as adetailed showing of allthe -mechanical connections whereby the parts areoperated is unnecessary for an standing of the lnventlon.

Constructions embodying the invention,-

underlhowever, will include a plurality of roll supports eachcapacitated to support a spare may be brought into contact and the new'rolls thus pasted to the old webs, the old'webs then being severed, thearrangement being preferably such thatthe depletion of any one of therolls in use to apredetermined point will automatically efiect the cycleof movements required to paste the newrolls to the running webs.

.The invention has been shown as embodied in two constructions.Referring first to the construction shown in Figure 1, there is provideda roll support in which the support is manipulated so as to complete arotation roll and a roll running to the press, together to bring a spareroll from loading position to pasting and the running position shown,and on the depletion of the roll in running positionbac'k to loadingposition and to pasting and running position with a new roll. In theconstruction illustrated there is shown two of these roll supports, butit will be understood that as many supports may be provided as isnecessary or desired for supplying any desired number of press units.These supports are or may be identical in construction and includestandards 200, 201 in which are mounted shafts 202, 203. The shaft 202supports an arm 204, in the opposite ends of which are bearings 205, 206for supporting a spare roll S and a running roll R, the web from therunning roll being indicated by the letter W, this web assing over aguide roll 207 to its press unit not shown). The shaft 203 supports asimilar arm 208, in the opposite ends of which are bearings 209, 210 inwhich is supported a spare roll S and a running roll R The web from theroll R is indicated by W and runs to its press unit (not shown) over aguide roll 211. It will be understood, of course, that arms 204, 208 areduplicated on the other side of the machine. stood. that if desired rollsupports capacitated to carry more than two rolls may be used asnecessary or desired.

The shafts 202, 203 are operated through suitable motors and circuits sothat they may be simultaneous-1y and automatically rotated on thedepletion of either the running web roll R or the running web roll R tomove the web rolls S, S into engagement with the webs W, W for pastingthese new web rolls to the webs, the movement of the support continuinguntil the new web rolls are in the de. sired position for normal running'to the press, that is, in the position shown in Figure 1, when themovement of the shafts is automatically stopped until the new web rollhas in turn become depleted. While the constructions for effecting thismay be somewhat varied, that shown in Figure 1 is a satisfactory one. Asshown in Figure 1, full web rolls are indicated in both running positionand loading position with the webs running from the upper web rolls orthose marked R, R Referring to the changer shown at the left of Figure1, there is provided a controller arm B which rests on the surface ofthe roll and follows the roll as the roll de creases in size, this armbeing mounted on a It will also be under-.

cause the shaft to turn to the right, through 7 conductor 65, upperclosed contacts 66 of relay R, conductor 67 to the negative side of theline 68. The support, upon turning, causes cam F on the shaft 202 tomove past the arm of switch G which is thus allowed to make contact witha contact H. This contact completes a holding circuit for relay R, whichcircuit extends from line L conductor 2, winding of relay R, through theupper closed contacts K and J, conductor 5, contact H, switch G,conductors 6 and 4, upper normally closed contacts of push button PL toline L. It will thus be seen that as the switch G is in be openedwithout interrupting the holding parallel with the switch C the switch Ccan circuit through the relay R, provided they switch G is closed.- Thesupport continuing its rotation will cause switch C to open first,

but the motor 64 will remain energized in this circuit and will not stopuntil a second cam F on the shaft 202, strikes switch G and opens theholding circuit, which stops the motor with the parts in the positionshown in Figure 1,

With the circuits asdescribed, the roll support is automatically turnedto the right, as shown in Figure 1, and this automatic movement of thesupport will always be to the right. Under some circumstances, it may bedesirable to effect a manual control of the support, either to the rightor to the left, as,

varied. As shown, however, the manually operated push buttons PR and PLare provided, and a relay L. The relays R and L together constitute areversing switch mechanism for the motor 64. When the relay R isenergized, the motor operates to turn the support to the right and, whenthe relay L is energized, the motor operates to turn the support to theleft. I

The automatic control of the motor to the right is as has beendescribed. For manual operation of the support in the right handdirection, as indicated by arrow A, push button PR isoperated. Theclosing'of this but ton completes a circuit extending from line Lconductor 2, winding of relay R, conductors 3 and 7 lower closedcontacts of push button PR, conductor 8, back to line L As long'as thepush button is held down the support will rotate in a right handdirection.

' If it is desired to rotate the support to the left, push button PL isclosed, completing a circuit from line L conductor 2,

through the winding of relay L, conductor 9, lower closed contacts ofpush-button PL and back toline L As long as this button is held down thesupport will rotate towards the left or in the opposite direction toarrow A, as shownin Figure 1. .The circuit for this may be traced asfollows: From positive line 60,-through conductor 212, upper contacts213 of relay L, conductor 214, through winding of motor 64, conductor215, lower contacts 216 of relay L,-conductor 217, con-f ductor 67 tothe negative side of the line 68.

It will be observed that the path of the current is in a directionopposite to that follows when relay R is operated.

It will be understood that the support on the shaft 203 is operatedin'the same way and that a motor circuit and motor similar to thatalready described is provided for this changer. In accordance withtheinvention, meansare provided whereby the exhaustion of. the running rollin either changer will cause the simultaneous and automatic mo'vement ofboth changers, so that the running, webs are pasted or spliced-to thenew or spare rolls. Referring again to Figure 1,in Which the circuitsfor this are illustrated with a type of roll support which has acomplete rotary movement, the following mechanism andcircuits areillustrated.

For the simultaneous operation ofthe sevf eral supports, switches M andM and tieline T are provided; With the running roll'R previouslyreferred to, exhausted and switch C closed, an additional parallelcircuit is completed from line L upper closed contacts of push buttonPL, conductor 4, switch arm C and contact E, conductor 7, upper closedcontacts of push button PR, conductor 10, through switch M, conductor T,through switch M conductor 110, upper closed contacts of push button PRconductors 107 and 103, winding of relay R conductor 102 to line L Thesingle web roll being exhausted thus energizes both relay R and relay Rthe circuit for relay R being the same as previously traced, thusturning both roll supports, and renewing both web rolls at. thesametime, and, of course, these connections can be extended to operate anydesired number of web roll supports.

Relay L may be operated independently of relay L by depressing pushbutton PL -whereupon a circuit extends from line L, conductor 102,winding of relay L, conductor 109, lower closed contacts of push buttonPL to line L Relay. L, which is energized in this circuit, completes anenergizing circuit for" a controlling motor and circuit (not shown)similar to motor 64 to turnthe support towards the left. -,The supportmay also be independently controlled tactsof push button PL. .Relay R.push button PR sociated.

to rotate towards the right by depressing push button PR whereupon acircuit is com pleted trom line L conductor- 102, winding of relay Rconductors 103 and4107, lower *0 contacts of push buttonPR to line L Relay R controls at itscontacts an'energizing circuitfor the motor in sucha way that the support is rotated towards "the right, the -circuitsbeing similar to those described with respect to relay R.

Automatic operation may be efiected un derthe control of thesupportishown tofthe rightin. Fig. 1. For instance when' arm B restingon: the surfaceof web rollR carries armQ- into contact with contact E, acircuit is automatically completed for relay R extending from line Lconductor 102, relay R conductor 103, contact E arm G pivot D conductor104,-closed contacts of push button PL to line L. This energizes the'85. support control motor similar .to motor 64,

causing the support to rotate around to. the 3 right to replacethe-roll; A holding circuit 7 for relay R is completed as soon as cam Fpasses switch G which holding circuit extends from line L over--conductor 3102,-

through winding of relay R through its I upper'closed contacts K and'J,conductor.

105, contact H switch-G, conductors 106 and 104, to line L through theupper corii W1 also be energized under these conditions if switches Mand .M areclosed; The circuitior this relay is traceable from line Lconductor,2, winding' of relay R, conductors 3 and 7,,u'pper contacts ofpush button PR, conductor'10,switch M, line T,- switch M conductor110,.upper contacts of conductor 107 contact E fined, it may bedesirable-to employ-a type a of web roll support which has'anoscillating or swinging movement, and means are providedforsimultaneously and automatically operating this type of support to pasteor splice a plurality of new .web rolls to the webs runningto the pressunits, such an arrangement being shown in Figure 2.

. In; the construction shown in this there is provided for each unit aroll changer,

in the form of anoscillatifigsupport or rack, two of these supportsbeing shown, marked U and V. Thesesupports are similar in constructionand are capacitated to carry a runningweb roll and a spare web roll, and

, and the support includes a pair of bent arms 226, 227 which carry, intheir ends, journals 228, 229 for supporting a running roll R and aspare roll S the web from the running roll B being indicated by W.Similarly the support or rack V comprises a pair of bent arms 230, 231which carry supports 232, 233 for a running roll R and a spare.

roll S the web from the running roll being indicated by W*. The arms230, 231 are supported on a shaft 234 suitably supported in any desiredframework.

In the best constructions, the mechanism hereafter described is operatedby the decrease in the running roll to a predetermined size, anactuator, contacting with the roll surface, being used for operating theconnections. This actuator, of course, may be of various forms, butinthe construction shown it is in the form of a roll 235 which has asliding movement in a groove 236 in a fixed frame,.indicated at 237, oneof these actuators being employed for each roll position of each rollchanger. These actuator rolls 235 are freely movable in the guides and,contacting with the web roll surface, follow the web rolls as theydecrease in size and operate, at a certain predetermined point in thedepletion of the running web 4, certain switches and circuits.

Referring to Figure 2, as soon as the left hand roll R on support orrack U is exhausted, switch W will be operated by actuator roll 235 toclose its contact, com pleting a circuit from line L conductor 31, relayL, conductor 32, contact 33 on switch Z conductor 34, contact 39 onswitch Y, conductor 35, upper contacts of push button PR conductor 36,contact of switch W conductor 37 to line L Relay L comprises the circuitto turn the support or rack to the left in order to bring the new rollinto pasting position against the running web W It will be understoodthat the start of the movement of the rack to the left will cause thepin 42 to close the switch Z at con-r tact 43, in preparation for theoperation of,

break the circuit at contact 40. When 38 operates 238, 42 closes Z at43.

It will be understood, however, that a motor, similar to motor 64, and acircuit therefor, similar to that already described in connection withFigure 1, are provided to operate the support or rack U a sufiicientdistance to bring the roll S to which adhesive has previously beenapplied, into contact with the running web W and make the paste.

When the right hand roll S becomes exhausted, a switch X, by means ofone of the actuating rolls, closes its contact and a circuit extendsfrom line L, conductor 31, winding a relay R conductor 46, contact 40 onswitch Y conductor 41, contact 43 on switch Z, which would then beclosed, conductor 35*, upper contacts of push button PL conductor 36*,contact of switch X, conductor 45, to line L The motor is thus energizedto turn the support or rack U to the right to bring the new roll, whichhas been loaded into bearin s 228, into position v to be pasted to therunning web at the right.

At the same time, pin 38* on rock arm 227 will have acted on arm 239 ofswitch Z to open the circuit at contact 43, thus de-energizing relay Rand stopping the motor. However, the lower arm 239 of switch Z will havemoved far enough to engage contact 33, establishing a connectionextending from line L, through conductor 31, winding of relay L,conductor 32, contact 33, arm 239 of switch Z, conductor 35, uppercontacts of push button PL, conductor 36*, contacts of switch X,conductor 45, to line L The support or rack is thus returned to itsnormal running position, being stopped by the action of pin 42 engagingthe arm 239 of switch Z and breaking the contact 33. The push button PRprovides a manual circuit for operating the motor in the right handdirection, the circuit extending from line L conductor 31, winding ofrelay R conductors 46 and 47, lower contacts ofpush button PR conductors48 and 37 to line L. Push button PL is closed to turn the rack to theleft, the circuit for relay L being traced from line L conductor 31,winding of relay L conductor 44, lower contacts of push button PLconductor 45 to line L When a number of the supports or racks are to becontrolledsimultaneously, as for instance U, V, etc), tie-lines T and Tand switches 49, 49 and 149 and 149 etc. are

provided. Assuming 'switchW to close upon the exhaustionof the left handrollR of rack U, an. additional .circ it parallel to that above tracedis establishai from lineL conductor 37, switchW conductors 36 and 50,switch 49, tie-line T switch 149, conductor 150, upper contacts-of pushbutton PR conductor 135', switch Y contact 139, conductor 134, switch Zcontact 133, conductor 132, relay L conductor 131 to line L Relay L isenergized to energize the motor (not shown) to move the support or rackV to the left or counter-clockwise in synchronism with rack U. Pin 138,on'arm 230, acts I on arm 240 of switch Y to open the circuit at contact139, de-energi'zing relay L and stopping the;motor. The lower arm 24()of switch Y will also have moved far enough to engage contact 140,establishing a, circuit that extends from line L through conductor 131,relay R conductor 146, contact 140, arm 240' of switch Y conductor 135,upper contacts of push button PR conductor 136, switch W },'which atthis time is closed by the actuating roll 235 associated: with thisswitch, conductor 137 to line L The energization of relay It moves thesupport or rack back or clockwise to normal running position, pin 138engaging the arm 240 of switch Y to break the circuit at contact 140'.

.When the right hand roll S carried in the support or rack U, isdepleted to the predetermined point, the supports U, V are bothsimultaneously operated to paste or join new web rolls which are loadedinto the positions R and R to the webs running from the rolls inpositions S S and the circuit for efiecting this may be traced asfollows: A switch X, similar to the switch W, is provided, and thisswitch is operated by an actuator roll 235 associated therewith, theoperation of the support lo-ting in this instance, clockwise.- Thecircuit for this may-be'traced as follows: The switch X having beenclosed by the actuator roll, a circuit-is completed from line D,conductor 31, relay R conductor 46, contact 40, conductor 41, contact43, switch Z, then closed, conductor 35 upper contacts PU, conductor 36,switch X to line L this circuit energizin relay R and operatlng supportor rack to the right. Support or I rack V is simultaneously operated tothe right through a circuit which may be traced from line L throughswitch 'X, conductor 36, switch 49*, tie-line T switch 149 conductor136, through the upper contacts of push button Pl conductor 135 contact143, now closed, switch Z conductor 141, contact 140 of switch Yconductor 146 to relay R conductor 131', back to line L With thiscircuit therefore both relays R and R are energized and the supports orracks are moved clockwise simultaneously to pasting position.

Duringthis movement, the pins 38 and 138 have contacted with the arms239, 239 of switches Z, Z breaking the circuits at the contacts 43' and143 and de-energizing the relays R 'and- It, thus stopping the motors,it being-understood that a motor and circuit, similar to the motor 64and its circuit, pre-' circuit through contact 33 and 133 forthev-iously-described, are provided for operating the support or rack V.The downward movementof the switch arms 239, 239 of the switches Z, Z?have, however, completed a relays L L The circuit for relay L is the 145to line L In accordance with the invention, means are proVided, as'before stated, whereby the depletion of a roll in either of the supports01 racks U, V will act to automatically operate to efiect the pastingoperation of all the supports or racks. Consequently,, there are shown"circuits whereby the depletion of either the. roll R or the roll Sshown in the support or rack V'at the right of Figure 2, will effectthis automatic past-ing.

\Vhen the right hand roll S of support V for instance becomes exhausted,switch X closes its contact through the action of the actuator roll 235associated therewith, completing a circuit from line L conductor 131,winding of relay R conductor 146, contact 140 on switch Y conductor 141,contact 143 on switchlz now closed, conductor 135 upper contacts ofpushlbutton PL conductor 136, contacts of switch X (which are nowclosed), conductor 145 to line L The motor associated with supportorrack V is thus energized to turn the support or rack V to the right,bringing the new web. roll in position B into position for. pasting. Atthe same time, pins 38 and 138? move switches Y and Y respectively toengage contacts 39 and 139 in preparation for the operation of changingrolls in positions R R Simultaneously, pin 138 will have acted on switchZ to open the circuit at contact 143, thus tie-energizin therelay R andstopping the motor; .owever, the lower arm 239 of switch Z will move farenough to engage contacts 133, establishing a connection extending fromline L conductor 131, winding of relay L conductor 13 2, contact 133 ofswitch Z conductor, 135 upper contacts of push button PLF, conductor136", closed contacts of switch X conductor 145 to line L The support orrack is thus re-' turned counter-clockwise to its normal runningposition, being stopped by the action of pin 142 engaging the switch Zand breaking the circuit at contact 133. Push button PR providesa-manual control for operating the motor in a right hand direction, thecircuit therefor extending from line L conductor closed contacts ofswitch X conductor 136, switch 149*, tie-line T switch 49", conductor36*, upper contacts of push button PL conductor 35, contact 43 of switchZ, now closed, conductor 41, closed contact 40 of switch Y conductor 46,relay R conductor 31 to line L Assuming the roll R? at the left handposi tion of support or rack V to be exhausted, the automatic movementof this support or rack counter-clockwise to paste anew roll at positionS to the web W running from the roll R is effectedby the action ofactuator roll 235 operating to close switch W through the followingcircuit From line L, conductor 137, closed contactsof switch W conductor136, upper contacts of push button PR conductor 135, contact 139 ofswitch Y conductor 134,-contact 133 of switch Z conductor 132, relay Lconductor 131 to line L. Through this the relay L 7 energizes the motorto turn the support or rack to the left. This turning movement of thesupport or rack causes the pin 138 to depress the arm 240 of switch Ybreaking the contact at 139 and de-energizing the relay. The downwardmovement, however, of arm 240 of switch Y has made a circuit at contact140 of switch Y which energizes the relay R to turn the support or rackto the right or clockwise to its normal running position throu h acircuit, which may be established as fo lows: From line L conductor 131,relay R, conductor 146 contact 140 of switch Y arm 240 of switch Yconductor 135, upper contacts of push button PR ,-conductor 136, switchW now closed, conductor 137 to line L The support or rack V may bemanipulated to the right or the left manually for purposes of slightadjustments for convenience in loading and the like, b the manuallyoperated push buttons PR L", the push button PL when its lower contactsare in circuit energizing the relay L, and the push button PR when itsclockwise.

lower contacts are in circuit energizing the relay R the relay L turningthe support or rack counter-clockwise or to the left, and the relay Rturning the rack or support clockwise or to the right, as shown inFigure 2, these circuits being similar to those already traced.

The depletion of the roll It acts to automatically rotate the support orrack V counter-clockwise and to simultaneously effect the movement ofthe support or rack U in the same direction, so that the webs of the newrolls S S are pasted or spliced to the rolls W WV running from the rollsR R The circuit for effecting this may be established as follows: fromline L conductor 137, closed contacts of switch WV, conductor 136,conductor-150, switch 149*,tie-line T switch 49*, conductor 50,conductor 36, upper closed contacts of push button PR conductor 35,contact 39 of switch Y, conductor 34, contact 33 of switch Z conductor32 relay L conductor 31 to line L The relays L and L are energized toturn the supports or racks to the left or counter- This turning movementcauses the pins 38, 138 to'engage the switch arms 238, 240 of switches Yand Y breaking the circuits at 39 and 139. This movement of the switcharms, however, makes a circuit at contacts 140 and 40 of switches Y andY thus establishing a circuit similar to that already traced forenergizing the relays R and R manner, either by hand or from acontrolling part of the press. As for instance, if a unit were to bediscontinued from use, the switch could be connected to the couplingmember employed for coupling the unit to the main drive shaft of thepress.

It will be observed that with the construction shown and described, awholly automatic changer has been devised for simultaneously effectingthe pasting or splicing of a plurality of webs to a plurality of newrolls,

the mechanism for effecting this being controlled by the decrease in thesize of any running roll to a predetermined point.

The mechanism for severing the expiring webs after the paste has beenmade may be of any suitable character and such a severing means has beenindicated at 250 in Figure 1 and 251 in Figure 2, it being understoodthat this mechanism is moved out of the way after the oldweb is severed.

While the invention has been shown and described in its preferred form,it will be understood that as to certain of its features it has beendesigned for and can be used with other types of roll supports and, ofcourse, with other circuits for controlling the various mechanismswhichmight'be devised with movement of the support, and tie circuits forcausing the simultaneous operation of the relays.

2. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press anda spare web roll, a relay and circuit for each support for controllingthe movement'of the support, any of said relays being controlled by thedepletion of any running web roll, and tie circuits for causing thesimultaneous operation of the relays.

3'. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press anda spare web roll, a relay and circuit for each support for controllingthe movement of the support, tie circuits for causing the simultaneousoperation of the relays, and a second relay for each support andcircuits therefor for independently operating the relays.

4. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press anda spare web roll, relays for each support, circuits for efiecting theautomatic and simultaneous operation of the relays, second relays foreach support, and manually controlled circuits for efi'ecting theindependent operation of the second relays.

5. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press anda spare web roll, relays for each support, circuits controlled by thedepletion of any running web roll for effecting the automatic andsimultaneous operation of" the relays,.second relays for each support,

and simultaneous operation of the relays in one direction, second relaysfor each support, and manually operated circuits for controlling therelays to efiect an independent movement of the supports in the oppositedirection.

' 8. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press anda spare web roll, a separate motor and circuit for each support forcontrolling the movement of the support, any of said motors beingcontrolled by the depletion of any running web roll, and tie circuitsfor causing the simultaneous operation of the motors.

9. In a web roll, renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press andaspare web roll, a motor for operating each support, a relay and circuitfor each motor for controlling the motor,

and tie. circuits for causing the simultaneous operation of the relays.

10. In a web roll renewer, the combination of a plurality of movablesupports eachcapacitated to support a web roll running to the press anda spare web roll, a motor for operating each support, a relay andcircuit for each motor for controlling its movement,

any of said relays being controlled by the depletion of any running webroll, and tie circuits for causing the simultaneous operation of therelays.

- In witness whereof, we have hereunto set our hands.

HARRY V. BALL.

ALBERT J. HORTON.

and manually controlled circuits for eifecting the independent operationof the second relays.

6. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll runningto the press anda spare web roll, relays for each support, circuits for effecting theauto,- matic and simultaneous operation of the relays in one direction,second relays for each support, andcircuits for controllin the secandrelays to efiect a movement of the supports in the opposite direction.

7. In a web roll renewer, the combination of a plurality of movablesupports each capacitated to support a web roll running to the press anda. spare web roll, relays for each support, circuits for efiecting theautomatic

